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2. Solar air conditioning - Wikipedia

   en.wikipedia.org/wiki/Solar_air_conditioning

   Solar air conditioning. Solar air conditioning, or "solar-powered air conditioning", refers to any air conditioning (cooling) system that uses solar power . This can be done through passive solar design, solar thermal energy conversion, and photovoltaic conversion (sunlight to electricity). The U.S. Energy Independence and Security Act of 2007 ...

3. Ice storage air conditioning - Wikipedia

   en.wikipedia.org/wiki/Ice_storage_air_conditioning

   Ice storage air conditioning is the process of using ice for thermal energy storage. The process can reduce energy used for cooling during times of peak electrical demand. [1] Alternative power sources such as solar can also use the technology to store energy for later use. [1] This is practical because of water's large heat of fusion: one ...

4. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons. Ground-source heat pumps (GSHPs) – or geothermal heat pumps (GHP), as they are ...

5. British thermal unit - Wikipedia

   en.wikipedia.org/wiki/British_thermal_unit

   The British thermal unit ( Btu) is a measure of heat, which is a form of energy. It was originally defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It is also part of the United States customary units. [1] The SI unit for energy is the joule (J); one Btu equals about 1,055 J ...

6. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Most modern hot water boiler heating systems have a circulator, which is a pump, to move hot water through the distribution system (as opposed to older gravity-fed systems). The heat can be transferred to the surrounding air using radiators, hot water coils (hydro-air), or other heat exchangers. The radiators may be mounted on walls or ...

7. Variable refrigerant flow - Wikipedia

   en.wikipedia.org/wiki/Variable_refrigerant_flow

   Variable refrigerant flow ( VRF ), also known as variable refrigerant volume ( VRV ), is an HVAC technology invented by Daikin Industries, Ltd. in 1982. [1] Similar to ductless mini-split systems, VRFs use refrigerant as the primary cooling and heating medium, and are usually less complex than conventional chiller -based systems.

8. 15 products to help you stay cool in the extreme heat: 'A ...

   www.aol.com/lifestyle/products-to-help-you-stay...

   The Green Pet Shop Cooling Pet Pad (Large) $60 at Amazon. JISULIFE Portable Neck Fan. $34 at Walmart. See 10 more. In fact, experts have a phrase for surviving extreme heat: "Wetter is better ...

9. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Central heating. A central heating system provides warmth to a number of spaces within a building from one main source of heat. It is a component of heating, ventilation, and air conditioning (short: HVAC) systems, which can both cool and warm interior spaces. A central heating system has a furnace that converts fuel or electricity to heat.